Patents by Inventor Jingshan LI
Jingshan LI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230398712Abstract: The disclosure provides a container, a cover and a chainsaw. The container includes a box body, a cover, a suction device, a first tube and a second tube. The box body is provided with a liquid storage cavity provided with a liquid filling opening and a liquid suction opening. The cover is detachably mounted on the liquid filling opening and is provided with a one-way ventilation structure. The suction device is arranged outside the box body. One end of the first tube is connected with the liquid suction opening, and the other end is connected with a liquid suction port of the suction device. One end of the second tube is connected with a liquid drainage port of the suction device, and the other end extends to a part to be lubricated or cooled of the cutting tool.Type: ApplicationFiled: August 21, 2023Publication date: December 14, 2023Applicant: Greenworks (Jiangsu) Co., Ltd.Inventors: Lingao ZHANG, Jun SHEN, Jingshan LI, Shu HUANG
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Publication number: 20230381875Abstract: The disclosure provides a power tool and a cutting tool. The power tool includes a housing, a motor, a power supply, a working assembly, and a transmission mechanism. The motor is mounted in the housing and the motor has a motor shaft. The power supply is configured to provide energy for the motor. The working assembly rotates along a rotating axis of the working assembly itself. The transmission mechanism has a transmission shaft, the transmission shaft is connected with the motor shaft, so as to transmit power from the motor to the working assembly. The motor is an outer rotor motor, and an axis of the rotating axis of the working assembly intersects an axis of the transmission shaft.Type: ApplicationFiled: August 8, 2023Publication date: November 30, 2023Applicant: Greenworks (Jiangsu) Co., Ltd.Inventors: Jingshan LI, Lingao ZHANG
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Patent number: 11413782Abstract: A chain saw includes a housing, the housing including a first housing, a second housing, and a receiving cavity formed by the first housing and the second housing; a cutter including a blade chain and a blade bar for supporting the blade chain, the cutter being mounted on the housing; a power assembly, the power assembly including a drive unit for driving the cutter and a power supply unit for supplying power to the drive unit; a front handle connected to the second housing and surrounding the first housing, the front handle including a grip portion, a first and second fixing parts which are located at two ends of the grip portion, the first fixing part abutting on the side wall of the second housing, and the second fixing part being located at the bottom of the housing and connecting with the second housing.Type: GrantFiled: October 19, 2020Date of Patent: August 16, 2022Assignee: Globe (Jiangsu) Co., LtdInventors: Lingao Zhang, Jingshan Li, Zhiwei Zong, Lianzhi Ren
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Publication number: 20210114248Abstract: The present invention provides a chain saw includes a housing, the housing including a first housing, a second housing, and a receiving cavity formed by the first housing and the second housing; a cutter including a blade chain and a blade bar for supporting the blade chain, the cutter being mounted on the housing; a power assembly, the power assembly comprising a drive unit for driving the cutter and a power supply unit for supplying power to the drive unit; a front handle connected to the second housing and surrounding the first housing, the front handle comprising a grip portion, a first and second fixing parts which are located at two ends of the grip portion, the first fixing part abutting on the side wall of the second housing, and the second fixing part being located at the bottom of the housing and connecting with the second housing.Type: ApplicationFiled: October 19, 2020Publication date: April 22, 2021Inventors: Lingao Zhang, Jingshan Li, Zhiwei Zong, Lianzhi Ren
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Patent number: 10607711Abstract: A current sample-and-hold circuit and a sensor, are provided. The current sample-and-hold circuit is used for offsetting a background photocurrent of a photodiode, and includes a capacitor and a first transconductance amplifier which has adjustable transconductance and outputs a sampled current to the photodiode to offset the background photocurrent of the photodiode. One end of the capacitor is connected with a power supply, the other end of the capacitor is connected with one end of the first transconductance amplifier; and the other end of the first transconductance amplifier is connected with the photodiode to output the sampled current to the photodiode. When the background photocurrent of the photodiode is increased, a change of a voltage of the capacitor within a large range can be avoided by increasing the transconductance of the first transconductance amplifier, so that the current sample-and-hold circuit can offset a larger background photocurrent.Type: GrantFiled: October 22, 2018Date of Patent: March 31, 2020Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Jingshan Li, Mengwen Zhang
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Publication number: 20190189235Abstract: A current sample-and-hold circuit and a sensor, are provided. The current sample-and-hold circuit is used for offsetting a background photocurrent of a photodiode, and includes a capacitor and a first transconductance amplifier which has adjustable transconductance and outputs a sampled current to the photodiode to offset the background photocurrent of the photodiode. One end of the capacitor is connected with a power supply, the other end of the capacitor is connected with one end of the first transconductance amplifier; and the other end of the first transconductance amplifier is connected with the photodiode to output the sampled current to the photodiode. When the background photocurrent of the photodiode is increased, a change of a voltage of the capacitor within a large range can be avoided by increasing the transconductance of the first transconductance amplifier, so that the current sample-and-hold circuit can offset a larger background photocurrent.Type: ApplicationFiled: October 22, 2018Publication date: June 20, 2019Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Jingshan LI, Mengwen ZHANG